diff --git a/FlatCAMApp.py b/FlatCAMApp.py
index bc2d706a..fb04b93e 100644
--- a/FlatCAMApp.py
+++ b/FlatCAMApp.py
@@ -808,7 +808,7 @@ class App(QtCore.QObject):
             "global_project_autohide": True,
             "global_toggle_tooltips": True,
             "global_worker_number": 2,
-            "global_tolerance": 0.01,
+            "global_tolerance": 0.005,
             "global_open_style": True,
             "global_delete_confirmation": True,
             "global_compression_level": 3,
@@ -1091,7 +1091,7 @@ class App(QtCore.QObject):
             # 2-Sided Tool
             "tools_2sided_mirror_axis": "X",
             "tools_2sided_axis_loc": "point",
-            "tools_2sided_drilldia": 0.0393701,
+            "tools_2sided_drilldia": 0.11811,
 
             # Film Tool
             "tools_film_type": 'neg',
diff --git a/README.md b/README.md
index 92e7ce3f..0ec483c2 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@ CAD program, and create G-Code for Isolation routing.
 - added some status messages for the Tcl script related methods
 - made sure that optionally, when a script is run then it is also loaded into the code editor
 - added control over the display of Sys Tray Icon in Edit -> Preferences -> General -> GUI Settings -> Sys Tray Icon checkbox
+- updated some of the default values to more reasonable ones
 
 18.09.2019